Year 9: Chapter 1 Teaching Program

Number and algebra Financial mathematics A

Solves financial problems involving simple interest, earning money and spending money (MA5-FIN-C-01)  Solve problems involving earning money  Solve problems involving simple interest  Solve problems involving spending money

Working mathematically

Develops understanding and fluency in mathematics through exploring and connecting mathematical concepts, choosing and applying mathematical techniques to solve problems, and communicating their thinking and reasoning coherently and clearly (MAO-WM-01)

© Oxford University Press 2024 Oxford Maths 9 Stage 5 NSW Curriculum Teacher obook pro ISBN 9780190342722. Permission has been granted for this page to be photocopied within the purchasing institution only.

Note: content in grey is covered in Oxford Maths 10 Stage 5 NSW Curriculum NSW Mathematics K–10 Syllabus © NSW Education Standards Authority for and on behalf of the Crown in right of the State of New South Wales, 2022.

Oxford Maths 9 Chapter 1 Financial mathematics Section 1 Chapter opener

Inter-year links Videos

1A Wages and salaries

Year 8: 3C Mark-ups and discounts Year 10: 1A Earning money

1B Other forms of income

Year 7: 4H Calculating percentages Year 8: 3B Calculating percentages Year 10: 1A Earning money

Key content video: Wages and salaries Example 1A.1 Example 1A.2 Example 1A.3 Example 1A.4 Key content video: Commissions, piece work and royalties Example 1B.1 Example 1B.2 Example 1B.3

Interactive skillsheets Equivalent fractions Multiplying and dividing decimals Rounding decimals Calculating percentages Wages and salaries

Commission, piece work and royalties

Investigations

Online assessments Chapter 1 pre-test

1A topic quiz

1B topic quiz

© Oxford University Press 2024 Oxford Maths 9 Stage 5 NSW Curriculum Teacher obook pro ISBN 9780190342722. Permission has been granted for this page to be photocopied within the purchasing institution only.

Note: content in grey is covered in Oxford Maths 10 Stage 5 NSW Curriculum NSW Mathematics K–10 Syllabus © NSW Education Standards Authority for and on behalf of the Crown in right of the State of New South Wales, 2022.

Additional resources

Section 1C Taxation

1 Checkpoint 1D Budgeting and spending money

1E Simple interest

Inter-year links Year 7: 4D Multiplying decimals Year 8: 2F Multiplying and dividing decimals

Videos Key content video: Taxation Example 1C.1 Example 1C.2

Interactive skillsheets Income tax

Year 7: 1D Multiplying whole numbers Year 8: 1C Multiplying and dividing whole numbers Year 7: 6C Terms, expressions and equations Year 8: 6A Equations Year 10: 1B Simple interest

Key content video: Payment options Key content video: Budgeting Example 1D.1 Example 1D.2

Payment options

Key content video: Simple interest Example 1E.1 Example 1E.2

Calculating simple interest

Investigations

Short-term loans

Online assessments 1C topic quiz

Additional resources

1 Checkpoint quiz 1D topic quiz

1E topic quiz

© Oxford University Press 2024 Oxford Maths 9 Stage 5 NSW Curriculum Teacher obook pro ISBN 9780190342722. Permission has been granted for this page to be photocopied within the purchasing institution only.

Note: content in grey is covered in Oxford Maths 10 Stage 5 NSW Curriculum NSW Mathematics K–10 Syllabus © NSW Education Standards Authority for and on behalf of the Crown in right of the State of New South Wales, 2022.

Worksheet: Calculating simple interest

Section 1F Simple interest calculations

1 Chapter review

Inter-year links Year 7: 6H Solving equations using inverse operations Year 8: 6D Changing the subject of a formula Year 10: 1B Simple interest

Videos Key content video: Simple interest calculations Example 1F.1 Example 1F.2 Example 1F.3

Interactive skillsheets Calculating simple interest rate Calculating the number of time periods for an investment Calculating the principal by simple interest formula

Investigations What percentage interest are you really paying?

Online assessments 1F topic quiz

Additional resources

1 Chapter review quiz

Quizlet Chapter 1 Class test A Chapter 1 Class test B

© Oxford University Press 2024 Oxford Maths 9 Stage 5 NSW Curriculum Teacher obook pro ISBN 9780190342722. Permission has been granted for this page to be photocopied within the purchasing institution only.

Note: content in grey is covered in Oxford Maths 10 Stage 5 NSW Curriculum NSW Mathematics K–10 Syllabus © NSW Education Standards Authority for and on behalf of the Crown in right of the State of New South Wales, 2022.